Meningite na infância: uma análise das internações hospitalares no Brasil / Meningitis in childhood: an analysis of hospital hospitalizations in Brazil

Objetivo: Analisar o perfil epidemiológico da meningite em crianças no Brasil. Método: Trata-se de estudo descritivo, cujos dados foram obtidos através de análise documental do Departamento de Informática do Sistema Único de Saúde (DATASUS) por meio de dados disponibilizados pela notificação no Sistema de Informação e Agravos de Notificação (Sinan). Foram utilizados dados da notificação de meningite no período de 2008 a 2019, em crianças até os 14 anos de idade no país. Resultados: Na faixa etária pediátrica, foram notificados 127.508 casos, o equivalente a 55,83% de todos os diagnósticos realizados neste período em todas as faixas etárias. Na amostra, houve maior prevalência da faixa etária entre 1 ano a 4 anos. Em relação ao sexo, o masculino foi o mais prevalente. Quanto à evolução dos casos notificados, a maioria dos pacientes tiveram alta hospitalar. Destes, a faixa etária entre 1 a 4 anos obteve maior prevalência. Quanto aos óbitos por meningite, houve maior prevalência da faixa etária de menores de 1 ano. O método quimiocitológico foi o método diagnóstico mais utilizado, evidenciando principalmente a meningite de etiologia viral. Conclusão: Verifica-se que os casos de meningite são prevalentes na faixa etária pediátrica, havendo predomínio da faixa etária entre 1 a 4 anos e do sexo masculino neste estudo. Ressalta-se a importância de ações preventivas, como a imunização vacinal, sobretudo quando se percebe a maior letalidade da meningite bacteriana

[Effect of hypoxia on gastric secretion of hypovolemic rats]. / Efectos de la hipoxia sobre la secreción de ratas hipovolémicas.

Gastric secretion was checked in two groups of rats with pyloric ligature and experimental hypovolemia subjecting one of the groups to acute hypoxia; in this group there was significant decrease in volume, acid and pepsin secretion and potassium concentration in gastric contents. In gastric mucosa pepsinogen was increased. We wish to emphasise in these changes, the importance of water and hypoxia in electrolytic balance.

[Comparative study of the gastric response in rats with pyloric ligation -- normovolemic rats and rats made hypovolemic by acute hemorrhage -- subjected to hypoxia]. / Estudio comparativo de la respuesta gástrica en ratas con piloro ligado, normovolémicas e hipovolémicas por hemorragia aguda, sometidas a hipoxia.

Gastric secretion was studied in two groups of rats in which pyloric ligature was made according to Dai's method. Both groups were put in a hypopressure chamber. One of the groups was normovolemic. The other group was made hypovolemic by acute bleeding. The following parameters were checked in gastire contents: volumen, acid and pepsin secretion, U.P./g. of stomach, chloride, potassium and sodium; in gastric mucosa total U.P. and pepsinogen concentration were measured. In the rats subjected to acute hypovolemia and hypoxia it was found a significant decrease in acid secretion, chloride and potassium mEq/1; there were no statistically significant changes in volume, pepsin secretion; U.P./g. of stomach and sodium mEq/1. Total U. P. and U.P./. of stomach increased in the gastirc mucosa.

[Gastric secretion in hypovolemic rats caused by acute hemorrhage]. / Secreción gástrica en ratas hipovolémicas por hemorragia aguda.

Gastric secretion was studied in two groups of rats in which pyloric ligature with wire was previously peformed. One of the groups was acutely bled until hypovolemia. The following parameters were checked: gastric volume, acid and pepsin secretion, Pu/g of stomach, chloride, potassium, and sodium. A significant decrease in volume, acid and pepsin secretion, Pu/g of stomach and chloride and increase in potassium in the hypovolemic rats found. There was no significant change in sodium concentration. There was no significant difference in the pepsinogen concentration in gastric mucous between both groups of rats.

[Study of gastric secretion in rats with ligation of the pylorus according to the Shay and Dai methods]. / Estudio de la secreción gástrica en ratas con píloro ligado según los métodos de Shay y Dai.

A comparative study of gastric secretion in rats with pyloric ligature according to either Shays' or Dais' methods was carried on, studying in both groups gastic acid and peptic secretions, mucous pepsinogen, and Na+, K+, and Cl-. The acid-peptic output as well as gastric Pu/g were greater in Dais' method. There were no changes regarding mucous pepsinogen when comparing both methods. Cl- and Na+ determinations showed minimal changes, whereas K+ showed no difference in both methods. We explain these modifications based on the difference in the secreted volume, since the acid concentration and Pu/ml are practically the same when comparing both methods.